Window-ventilator.



i No. 846.721.

PATENTED MAR. 12, 1907. M.v H. BERRY.. WINDOWl VENTILATOR. APPLIUATION FILED Mum. 190e.

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No.846,7z 1. I ATENTr-:n MAR.12,1907.

M. H. BERRY.

WINDOW VENTILATOR. APPLIOATION FILED Mmm, 190e.

2 SHEETS-SHEET 2.

o o o `o o` o o o o o o W o 0 o Y' o D e o o o H D o ol o c o o o o o e o o o w Witnesses UNITED STATES PATENT OFFICE.

MILTON I-I. BERRY, OF EVANSTON, ILLINOISQASSIGNOR TO BERRY VENTI- LATOR- COMPANY, OF CHICAGO, ILLINOIS, CORPORATION OF MAINE.

Specification of Letters Patent.

Patented march 12, 1907'.

" Application lod March 7, 1908. Serial No. 804,611.

.,My invention re ates to that class of ven-- 4 tllators which are designed to prevent a direct current of. air or draft upon the occu pants of the room upon the opening of the window.

The ventilators of this class with which I am familiar are all of them of considerable bulk, with the resultl that'when they are not in use they occupy a considerable amount of Y space and are for the most part unsightly and serve to detract rather than add to the furnishings of the house or office.

The object of my invention is to provide a foldable ventilator which will occupy a very small space when closed and vwhich will ermit of the opening and closin ofthe win ow without causing a direct dra upon the occupants of the room, and has for its further object to provide aventilator which may be utilized at either top or bottom of the windowand which may be so constructed as to be transparent and consequently not obstruct the light when desired, and vhas for -a further obj ect to construct a ventilator which, if desred,'may be attached-to the window so as to be operated by the opening and clos in of the window-sas y means of accomplishing the foregoing objects ymay be' more .readily -understood by;

having reference tothe accompan g drawings, which are hereunto annexe and are a` part of this specification, in Which- Figure `1 is an elevation of the inside of a window frame and sash, showing 4my improved ventilator Imounted thereon.l Fig. 2 1s avertical transverse (section of the same. Fig. 3 is an enlarged detail in section showing parts of my improvement adjacent to the meeting-rails of the sash.,v Fig. 4 is a detail taken in section above my improved ventilator, showing the same in plane. Fig. 5 isfa perspective view of my as it would be when used etachedfrom the sash. Fig. 6 is a vertical section-of a. modiied form of my invention. Fig 7 is an .lenlarged detail in section of a part of that construction. Fig. 8 is an enlarged-detail, partlyimdproved ventilator Y in section, taken at right angles -of Fig. 1 showing the method of attachin the vertica movable panel in a modified orm'of construction.

Similar referenceletters refer to similar parts throughout the entire descri tion.

In the'drawin s, A is a win ow-casing. This casing may and preferably is of the ordinary well-known construction with' the exception that it is, under some conditions, provided in the inner sides of its side Stiles al adjacent to the upper ends thereof with vertical grooves or guideways b of about the pro portional length and width shown in Fi 2.

B is the lower sliding sash of thelwin ow, which may be ofthe ordinary construction or any ,other construction compatible with the purposes of my invention without involving departure from the scope thereof, and C is the upper sliding sash. This latter is pr'ovided at the inner side of its frame With a pane of glass c and'at points adjacent to its side bars with upright metallic rods d, which are fixed to and extend between its lower and upper bars and are provided at intervals `in their length with indentures or apertures e, Fig. l, and at their upper ends with threads f, designed for the engagement of verticallyadjustable nuts g', the pur ose of which will be presently explained. n the upper side of the top bar. or rail of the lower sash B is suitably secured a stri C of rubber or analogous material, which 1s designed to lap over the lower bar or rail of the upper'sash C when the window is entirely closed, (see Fig. 3,) so as to preclude the passage of air through the joint'between the meeting rails or bars of the sashes. Also mounted on the upper bar-or rail of the lower sash B are` endwlse-movable detents D, which are arranged to be seated in the indentures or apertures e of the rods d with a view of fastening the Vupper sash to the lower sash when the former is lowered for4 the purpose of ventilation, although it is obvious that both the rods d and their accompanying nuts g', together with the detents D, may be dispensed with without in any way deviating from the spirit of my invention.

E is my novel ventilator as a whole, and F is an adjustable airexcluding device which `may be provided above the ventilator.

Where the ventilator is used as shown in `Figs. 1 and 2, it may be found desirable in practice to fasten the top of the :ventilator quired.

- With a slot and an aperture, respectively, as

directly to the window-frame, in which event the air-excluding device Would not be re As shown in the drawings, the ventilator E is open at its ends for the exit of vitiated air and the entry of fresh air, and it is made up of panels g, hinged together at 7L and bearing panes of glass i, a bottom Wall k, preferably of sheet metal, hinged at Z to the lower panel g and having apertures m for the passage of air, and a top wall n, hinged at p to the upper panel g and also having apertures m forthe passage of air. The bottom wall c and the top wall nVrespectively, comprise lapped sections, as shown, which sections are adjustably connected together by bolts r, carried by one and disposed-in slots sin the other, whereby it will be seen that the width of the said walls may be readily increased or diminished to amplify or lessen the capacity of the ventilator as conditions demand.

It may be found desirable in practice to construct both the top and bottom wall and the panels of lapped sections invwhich the slots s may be so arranged as to permit of the manufacture of a ventilator which will be adjustable for windows of various widths.

On its edge remote from the panels g the bottom wall 7c of the ventilator is provided with lugs t. These lugs are designed to engage the rods l on sash C and be clamped against the upper bar or rail of said sash by the nuts g, and hence it will be apparent that the lower wall 7c of the ventilator is strongly and yet detachably connected to the sash, it being apparent that any method of fastening may be adopted without deviating from,the spirit of my invention. A

The top wall n of the ventilator is provided at the ends of its edge remote from the panels g with brackets fu., which are disposed and movable vertically in the grooves or guideways b of the frame-Stiles a and are provided clearly shown in Fig. 5. lThe a ustable airexcluding device F is madeup of a springroller 'u of the Hartshorn or any other suitable type, appropriately mounted at its ends in the brackets u of the ventilator, and a textile or other suitable curtain w, connected at 'one end to and designed to be wound on the roller v and suitably connected -at its opposite end to the crown-bar of the windowcasing A, as best shown in Fig. 2.

The operation of my device, as shown in Figs. 1 and 2, is as follows: When the detents D are disengaged from the rods d and the sash C is raised to the full extent to close the window, the ventilator E wilL collapse or fold into a compact bundle, occupying veryv little space, and the roller v as it approaches the crown-bar of the casing A will take up or Wind the curtain w, and consequently it will be apparent that when idle or not in use the amount of space at the top of the Window.

When, however, the upper sash C is lowered to the extent shown, the ventilator E will be drawn downwardly and opened, while the curtain w will be caused to close the space intermediate the ventilator and the crown-bar of -the casing A. In its open position the ventilator E, because of the transparency of vits panels g, will not appreciably interfere with the passage of light through the window and yet will obviously prevent adirect draft of air from striking persons located adjacent to the Window. It will be noticed, however, that in virtue of the open ends and the f oraminated bottom and top of the ventilator air is enabled to freely pass into and out of the compartment, and consequently the maintenance of a pure atmosphere in the apartment is assured, which is an important desideratum. During the upward movement of the sashC the ventilator-panels g,

will by reason of their being hinged together and to the bottom and top walls, swing outward, while when the sash is moved downward said panels g will swing inward to the position shown in Figs. 2 and 5.

In the modified construction shown in Figs. 6 to 8 the ventilator E, which is generally similar to the ventilator E, is carried by the lower sash B', and an adjustable air-excluding device F is provided between said ventilator and the sill :c of the window-casing A. An air-excludin device F views, but practlce has shown that it is often desirable to secure the bottom of the ventilator directly to the lower part of the windowsill x, in which event obviously the air-excluding'device would not be needed. When used, it is preferable in the form of a panel having a pane of glass or other `transparent material i. to prevent its excluding the light, and it is disposed in a pocket y, formed in the sill a, and is provided with projectionsz, Fig. 8, designed to bring u tary abutments z on t e ocket-Walls, whereby it will be seen that it 1s held against Withdrawal from the pocket.

In the practicalI use of the modified construction the ventilatorE and the-device F assume positions shown when the sash B is raised and for the purpose before described With reference to t e ventilator'E and the device F, While when the sash is lowered the ventilator E collapses or folds into a compact bundle and the device F is sheathed in.,

the pocket y.

When desired, theconstruction shown in Figs. 6 to 8 may be reversedthat is-to say,

of the casing A and the panel F arranged in said pocket and above the ventilator carried by the upper'sash.4 In this latter case I contemplate providing turn-buttons (not shown) is shown in these- IIO the pocket 'y may be formed in the crown-bar on the side stiles of the casing for supporting the panel F when the vent1lator is disconnected from said panel.

I prefer to detachably connect the ventilator E and lthe panel F and this through the medium of one or more spring-pressed plungers c2, as shown in Fig. 7.

It will be gathered from the foregoing that my improvements are located `at the inner side of the window, where they are protected from the weather, and that they are at once simple and durable in construction and neat in appearance.

I have specifically described the construction and relative arrangement of the parts embraced in the -present embodiments ofmy invention in order to impart a definite understanding of said embodiments. Ido not desire, however, to be understood as conning myselrl to such specific construction and relative arrangement of parts, as changes or modiiicationsmay be made in practice which will fairly fall within the scope of my invention as claimed.

It may be found desirable in practice to utilize a ventilator as shown in Fig. 5, in which case the lower wall k may be secured to the window-sill x and 'a handle provided for the top wall n. Where this is done, it will not of course be attached to the window at all, and it will be possible to open the window Without raising the ventilator.

Having described my invention, what'I claim, and desire to secure by Letters Patent, is

1. The combination with a Window, of a ventilator arranged to open and close synchronously with the opening and closing of the window; the saidventilator being open at its ends and having a transparent wall barring the direct passage of alr and .also having foraminated bottom and top Walls.

2. The combination with a window, of a ventilator arranged to open and close synchronously with the opening and closing of the window; the said ventilator being open at its ends and havinga transparent wall barring the direct passage of a1r and also the sash; the said venti havin sectional foraminated Walls which are a justable as to width for the purpose set forth.

3. The combination .of a-WindoW-casing, a sliding sash therein, a ventilator arranged to open and close with the sash, and an adjustable or movable air-excluding device interposed between and connecting Vthe ventilator and the casing.V

4. The combination of a windowfcasing, a sliding sash therein, a collapsible or foldable ventilator arranged to oIpen and close with ator being open at its ends and having a transparent inner wall,

and an adjustable or movable air-excluding device interposed between and connecting the ventilator and the casing.

5. The combination of a Window-casing, a sliding sash therein, a collapsible or foldable ventilator arranged to open and close with the sash; the said ventilatorbeing open at its ends and having an inner wall formed by transparent panels hinged together, and bot-` tom andtop, foraminated Walls hinged to the inner wall, and an adjustable or movable air-excluding device interposed between and connecting the ventilator and the casing.

6. The combination of a window-casing, a

slidable sash therein, a ventilator arranged to open and c lose with the sash, a springroller carried by the ventilator, and a curtain connected to and adapted to be wound. on the roller and also connected to the casing.

7. The combination of a window-casing,a

lower slidable sash, an up er slidable sash carrying rods, means on t e lower sash for engaging said rods, aventilator connected with the rods and arranged to open 4and close with the upper sash, a spring-roller carried by the ventilator, and a curtain connected to and adapted to be wound on the springroller and also connected to the casing.

8. The combination of a window-casing, a sliding sash therein, and a ventilator disposed at the inner side of the sash andcorb nected with the same and also with the casing the said ventilator being open at its outer side and at one or both of its ends.

9. The combination of a window-casing, a sliding sash therein, 'and a ventilator disposed at the inner side of the sash and connected with the same and also with the casing', the said ventilator being open at its outer side and at one or both of its ends an having a transparent inner wall.

10. The combination of a window-casing, a sliding sash therein, a ventilator disposed at the inner side of the sash and connected with the same and also with the casing; airexcluding means arranged at the juncture of the sashes and movable therewith, and means for locking said excluding means at intervals to the casing.

, 11. The combination with a Window; of a collapsible ventilator connected with the window and arranged to be unfolded and opened on the opening of the window.

12. The combination with a window; of a collapsible ventilator connected with the window and arranged to be unfolded and opened on the opening of the window and having a transparent wall for barring the direct passage of air. v

13. In a device of the character described, the combination with a window of a vventilator, said ventilator bein provided with a top and bottom, a side wal hinged to the top and bottom, said wall being formed with a plurality oi i'olds to permit the .ventilator to be expanded to register With any point to Which the Window. may be opened.

14. In a device of the character described, the combination with a vvindon of aventilator, said ventilator being provided with a top and bottom and side Wall, said wall being formed with a plurality of folds to permit the ventilator to be expanded to register with any point to which the Window may be opened. l

15. In a device of the character described, the combination With a Window 0i' a vent-ilator, said ventilator being pro vided With a top and bottom, a side Wall or lapped sections hinged to the top and bottom, said Wall being formed with a plurality of folds.

16. In a device of the character described, the combination with a Window of a ventilator, said ventilator beingl provided With av nected and adapted to fold in a compact form.,

18. The combination with a window of a foldable device to deflect the air-currents entering When the Window is open, said device being constructed of sections hinged to each other and adapted to expand to reglster with the opening oi the window.

19. The combination with a Window of a foldable device to deflect the air-currents entering When the Window is open, said device being constructed of telescoping and hinged sections adapted to expand to register with the opening of the Window.

20. In a device ofthe character described, the combination With a Window of a ventilator having each end open, ,said ventilator being provided with a top, the sai-d top `being perforated, a side Wa l formed with a number of folds to permit the ventilator to be expanded to register With the opening oi thel Window.

21. In a device-of the character described,

the combination with a window oi a ventilator having each end open, said ventilator Abeing provided with atop and bottom, the

said top being perforated, a side wall formed -With'a 'number-of folds to permit the ventilator to be expanded to. register lwith the opening of the Window. l

In testimony whereof I aflix my signature in presence of two witnesses MILTON H. BERRY.

Witnesses:

l A. L. HoUGH,

N. A. MAYHEW. 

